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Individual
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Priority to ES79519ApriorityCriticalpatent/ES79519A1/en
Publication of ES79519A1publicationCriticalpatent/ES79519A1/en
ES79519A1921-09-201921-09-20
Improvements in the drafting system of spinning machines, continuous machines, roving frames and draw frames.
ExpiredES79519A1
(en)
Perfeccionamientos in the continuous machines of rings, of spinning and of twisting, with vertical movement independent of the rule portahusos and balancĂn.